On Oct 12, 2014, at 8:45 AM, Rui Barradas wrote: > Hello, > > Try the following. > > do.call(rbind, lapply(a, '[[', "var1")) > do.call(rbind, lapply(a, '[[', "var2"))
Could perhaps (untested) make it more general with: do.call(rbind, lapply(a, '[[', names(a[[1]])[1])) do.call(rbind, lapply(a, '[[', names(a[[1]])[2])) And then seeing that, could perhaps make it a one-liner with: lapply( names(a[[1]]), function(nm) do.call(rbind, lapply(a, '[[', nm)) ) -- David. > > Hope this helps, > > Rui Barradas > > Em 12-10-2014 07:14, Cesar Caballero escreveu: >> Hi all, >> >> I have an array of lists. All lists have the same names and the vectors >> inside each name have the same dimension. >> >> For instance, >> >> a[1:4] >> [[1]] >> [[1]]$var1 >> [1] 1 2 3 4 5 >> >> [[1]]$var2 >> [1] 6 7 >> >> >> [[2]] >> [[2]]$var1 >> [1] 2 4 6 8 10 >> >> [[2]]$var2 >> [1] 12 14 >> >> [[3]] >> [[3]]$var1 >> [1] 3 6 9 12 15 >> >> [[3]]$var2 >> [1] 18 21 >> >> >> I would like to apply rbind to concatenate all vectors for a given name, >> e.g. concatenate all the a[[]]$a >> How can I do that? >> >> Thanks very much in advance. >> >> Best wishes >> Cesar >> >> >> ---------------------------------------------------------------------- >> Cesar Caballero >> MRI engineer >> www.bcbl.eu >> >> Legal disclaimer/Aviso legal/Lege-oharra: www.bcbl.eu/legal-disclaimer >> >> ______________________________________________ >> [email protected] mailing list >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. >> > > ______________________________________________ > [email protected] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. David Winsemius Alameda, CA, USA ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
